I'm on the verge of finishing David Deangelo's Double your Dating book and I'm at the part where he advocates that getting a girl's e-mail is better than her number for a couple of reasons. First..a lot of girls tend to give away their numbers for one reason or another-but not that many guys ask for e-mail. Second...girls tend to respond a lot quicker to e-mail (they can also respond to it at any time) as oppose to calling (not to mention, you actually have to reach them via calling). Now, I usually get numbers with ease, but I'm now wondering if I should start trying to get a girl's e-mail instead. What do you the experts think?